Question: please help me with this. thank you so so much in advance PROVE THE FOLLOWING IDENTITIES USING PROPER FORM. You must show all your work.

please help me with this. thank you so so much in advance

PROVE THE FOLLOWING IDENTITIES USING PROPER FORM. You must show all your work. (4 marks each) 1. tan x cot x = sec x Cos x 2. (sin x + cos x)( sin x - cos x) =1 -2cos-x 3. col x 1 - sin x 4. (sin x + cos x) = 1 + 2 sin x . cos x tan x 1 - COS X

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